| Company | Timeline | Status | |
| Darrington Quarries Limited Director • Non Executive Director | 1 Apr 2001←2 Years 4 Months→31 Jul 2003 | Active | |
| Midland Quarry Products Limited Director • Director | 6 Mar 2000←2 Months→1 Jun 2000 | Active | |
| Midland Quarry Products Limited Director • Director | 27 Dec 1996←2 Years→31 Dec 1998 | Active | |
| Finstop Limited Director • Non-executive Director | 27 Sep 1996←6 Years→31 Jul 2003 | Active | |
| Mineral Products Association Limited Director • Managing Director | 15 Jul 1992←3 Years→6 Mar 1996 | Active | |
| Winmix Limited Director • Director | 28 Jun 1992←3 Years→16 Mar 1996 | Active | |
| Hepplewhite Quarries & Plant Hire Limited Director • Director | 20 Jun 1992←3 Years→15 Dec 1995 | Dissolved | |
| Tarmac Toplite Limited Director • Director | 6 Jun 1992←3 Years→15 Dec 1995 | Liquidation | |
| Tilcon Holdings Limited Director • Director | 13 Jul 1991←4 Years→27 Dec 1995 | Active | |
| Tilcon Services Limited Director • Director | 12 Jul 1991←4 Years→27 Dec 1995 | Active | |
